JP2022042257A - Black core card - Google Patents

Abstract

To provide a black core card that uses transparent base material, has on the front and back sides thereof pattern printing in chromatic colors excellent in color development and also has the side faces thereof looking sufficiently black.SOLUTION: The black core card includes: a front oversheet laminated body on its transparent core sheet comprised of at least one layer of transparent base material, the light transmission density of the front oversheet laminated body being 2.0 or over; and a back oversheet laminated body on the back side of the transparent core sheet, the light transmission density of the back oversheet laminated body being 1.0 or over. The front oversheet laminated body includes at least a black color printed layer and a front transparent oversheet, and the back oversheet laminated body does not include at least a black color printed layer but includes a back transparent oversheet, characteristically.SELECTED DRAWING: Figure 1

Description

Regarding various cards such as cash cards, credit cards, various ID cards, and membership cards.

For high-ranked credit cards such as black cards, black core cards that look black up to the side of the card are preferably used in order to differentiate them from general-ranked cards and give them a high-class feel.

Black core cards generally make the sides of the card look black by using a black base material, but as another method, a light shielding print layer is printed on the front and back of a core sheet composed of a transparent base material to make the core. A card that makes the side surface of the card appear black in a pseudo manner by preventing light from entering the sheet is known (Patent Documents 1 and 2 below).

For example, in the case of the above black card, the base color of the pattern on the front and back is generally black, so if black, which is the base color of the pattern, is printed on the front and back of the core sheet composed of a transparent base material, black printing can be performed. Since it hardly transmits light, it is possible to prevent light from entering the inside of the core sheet and make the side surface of the card look black.

On the other hand, in recent years, in response to the increasing design of cards, there are increasing cases of adopting black core cards in addition to black cards. In the case of such a card, the base color of the front and back patterns is not limited to black, and chromatic colors such as red, green, and blue are used as the base color.

Japanese Unexamined Patent Publication No. 2009-184171 Japanese Patent No. 5169700

However, when trying to reproduce the above pattern with a black core card using a transparent base material, a black printing layer is provided on both sides of the transparent core sheet as a light shielding printing layer as in the conventional case, and a base color is provided on the black core sheet. When printing a chromatic color that becomes, the color development deteriorates and it is difficult to obtain the desired color.

In addition, it is possible to improve color development by superimposing white printing etc. on black printing and printing in chromatic color on it, but in that case, the printing layer becomes thick, so blocking of the print sheet is likely to occur. Problems such as a decrease in the correlation peeling strength between sheets that are in close contact with each other across the printed layer occur.

On the other hand, when silver-colored printing other than black is provided on the front and back surfaces of the card as a light-shielding printing layer, the color development of the pattern printing layer is improved, but the light-shielding property is inferior to that of black printing, so light is transmitted. There was a problem that the core sheet looked grayish and the side of the card did not look black.

Therefore, the present invention has been made in order to deal with the above-mentioned problems, and is a black core card using a transparent base material, and has chromatic pattern printing with good color development on the front and back surfaces. death,
Moreover, the purpose is to provide a card whose side surface looks sufficiently black.

As a means for solving the above problems, the invention according to claim 1 comprises a surface oversheet laminate on the surface of a transparent core sheet made of at least one layer of a transparent substrate, and the surface oversheet laminate is provided. The light transmission density of is 2.0 or more,
Further, a back oversheet laminate is provided on the back surface of the transparent core sheet, and the light transmission density of the back oversheet laminate is 1.0 or more.
The table oversheet laminate comprises at least a black print layer and a surface transparent oversheet.
The back oversheet laminate is a black core card characterized by containing at least a black print layer and a back transparent oversheet.

Further, in the invention according to claim 2, the front oversheet laminate has a black print layer, a front transparent oversheet, a light reflection print layer, and a pattern print layer in this order from the surface side of the transparent core sheet. Formed by stacking
The black core card according to claim 1, wherein the back oversheet laminate is formed by laminating a light shielding print layer and a back transparent oversheet in this order from the back surface side of the transparent core sheet. Is.

Further, in the invention according to claim 3, the table oversheet laminate is formed by laminating a black print layer and a surface transparent oversheet in this order from the surface side of the transparent core sheet.
The first aspect of the present invention is characterized in that the back oversheet laminate is formed by laminating a light reflection printing layer, a pattern printing layer, and a back transparent oversheet in this order from the back surface side of the transparent core sheet. The black core card described.

Further, in the invention according to claim 4, the front oversheet laminate has a black print layer, a front transparent oversheet, a light reflection print layer, and a pattern print layer in this order from the surface side of the transparent core sheet. Formed by stacking
The first aspect of the present invention is characterized in that the back oversheet laminate is formed by laminating a light reflection printing layer, a pattern printing layer, and a back transparent oversheet in this order from the back surface side of the transparent core sheet. The black core card described.

According to the present invention, the light transmission density of the layer formed on the front surface side covering the transparent core sheet is 2.0 or more, and almost no light is transmitted under a fluorescent lamp. Combined with setting the light transmission density of the configured layer to 1.0 or more, it is possible to sufficiently suppress the arrival of externally incident light on the transparent core sheet, so that the side surface of the card can be made black. It becomes.

Further, if the light transmission density of the layer formed on the back surface side covering the transparent core sheet is 1.0 or more, it can be sufficiently achieved even with a light reflection printing layer for white or silver printing other than black, and the black printing layer. By forming the light reflection printing layer + the pattern printing layer, it is possible to maintain the black color on the side surface of the card without impairing the color development of the chromatic pattern printing layer.

As for the surface, a black print layer is provided between the transparent core sheet and the surface transparent oversheet, and other print layers are provided on the outer surface of the front transparent oversheet to transmit light without thickening each print layer. It is possible to achieve a concentration of 2.0 or higher.

The sectional view of the black core card in Embodiment 1. FIG. The sectional view of the black core card in Embodiment 2. FIG. FIG. 6 is a schematic cross-sectional view of the black core card according to the third embodiment. Schematic diagram of the cross section of the card of Comparative Example 1. Schematic diagram of the cross section of the card of Comparative Example 2. List of comparison results between Examples and Comparative Examples.

Hereinafter, each embodiment will be described with reference to FIGS. 1, 2, and 3.

<Embodiment 1>
FIG. 1 is a schematic cross-sectional view of the black core card 1 according to claim 2.

The black core card 1 has a transparent core sheet 10 made of one or more transparent substrates, and a black printing layer 11, a front transparent oversheet 21, a light reflection printing layer 31, and a chromatic color on the surface side of the transparent core sheet 10. The front oversheet laminate 100, which is formed by laminating the pattern printing layer 41 having the above-mentioned pattern in this order, and the light shielding printing layer 52 and the back transparent oversheet 22 are laminated in this order on the back surface side of the transparent core sheet 10. It is composed of a back oversheet laminated body 200.

The light transmission density for the front oversheet laminate 100 including the chromatic pattern printing layer 41, the light reflection printing layer 31, the surface transparent oversheet 21, and the black printing layer 11 is adjusted to 2.0 or more.

Further, the light transmission density with respect to the back oversheet laminate 200 including the light shielding print layer 52 and the back transparent oversheet 22 is adjusted to 1.0 or more.

According to the present embodiment, it is possible to realize a black core card in which the intrusion of light into the transparent core sheet is suppressed and the side surface of the card is kept black while ensuring good expressiveness by the chromatic color pattern printing layer on the surface.

<Embodiment 2>
FIG. 2 is a schematic cross-sectional view of the black core card 2 according to claim 3.

The black core card 2 has a transparent core sheet 10 made of one or more transparent substrates, a black printing layer 11 on the surface side of the transparent core sheet 10, a front transparent oversheet 21, a light reflection printing layer 31, and a chromatic color. A front oversheet laminate 100 formed by laminating a pattern printing layer 41 having a pattern in this order, a light reflection printing layer 32 on the back surface side of the transparent core sheet 10, a pattern printing layer 42 having a chromatic pattern, and a back surface. It is composed of a back oversheet laminated body 200 formed by laminating transparent oversheets 22 in this order.

The light transmission density for the front oversheet laminate 100 including the chromatic pattern print layer 41, the light reflection print layer 31, the surface transparent oversheet 21, and the black print layer 11 is adjusted to 2.0 or more.

Further, the light transmission density with respect to the back oversheet laminate 200 including the light reflection printing layer 32, the pattern printing layer 42 having a chromatic pattern, and the back transparent oversheet 22 is adjusted to 1.0 or more.

According to this embodiment, a black core card in which the intrusion of light into the transparent core sheet is suppressed and the side surface of the card is kept black while ensuring good expressiveness on both sides of the card by the chromatic color pattern printing layers on the front and back surfaces. Can be realized.

<Embodiment 3>
FIG. 3 is a schematic cross-sectional view of the black core card 3 according to claim 4.

The black core card 3 is formed by laminating a transparent core sheet 10 made of one or more transparent base materials, a black printing layer 11 and a surface transparent oversheet 21 on the surface side of the transparent core sheet in this order. From the back oversheet laminate 200 formed by laminating a light reflection printing layer 32, a pattern printing layer 42 having a chromatic pattern, and a back transparent oversheet 22 on the back surface side of the body 100 and the transparent core sheet 10 in this order. Become.

The light transmission density with respect to the front oversheet laminate 100 including the front transparent oversheet 21 and the black print layer 11 is adjusted to 2.0 or more.

Further, the light transmission density with respect to the back oversheet laminate 200 including the light reflection printing layer 32, the pattern printing layer 42 having a chromatic pattern, and the back transparent oversheet 22 is adjusted to 1.0 or more.

According to this embodiment, it is possible to realize a black core card in which the intrusion of light into the transparent core sheet is suppressed and the side surface of the card is kept black while ensuring good expressiveness by the chromatic color pattern printing layer on the back surface side.

Hereinafter, the detailed configuration of each of the above-mentioned members will be described.

<Black print layer>
The black print layer 11 has a function of absorbing light incident from the outside and preventing light from entering the inside of the transparent core sheet. Since black does not particularly transmit light, it is possible to make the light transmission density 2.0 or more by providing a black printing layer, and it is possible to make the side surface of the card look blacker.

Both offset printing and screen printing are possible to form the black print layer, but screen printing is desirable to improve the light shielding property.

Various pigments can be used as the pigment for printing, but carbon black is generally used.

The thickness is preferably 1 to 3 μm. If it is 1 μm or less, the light shielding property may be insufficient, and if it is 3 μm or more, the printing sheet is likely to be blocked, and the delamination strength between the sheets that are in close contact with each other across the print layer is lowered. There is a possibility that problems such as printing may occur.

From the viewpoint of light shielding, it is desirable to print on the entire surface of the card.

<Light reflection print layer>
The light reflection printing layer 31 or 32 has an effect of improving the color development of the chromatic pattern printing layer printed on the light reflection printing layer 31 or 32 by reflecting the light incident from the outside.

Both offset printing and screen printing are possible for forming the light-reflecting printing layer, but screen printing capable of thick printing is desirable in order to enhance the effect.

Inks with high light reflectance such as white and silver can be used. Various inks can be used as the ink pigment, but generally, TiO ₂ is used as the pigment for the white ink, and metal powder such as aluminum is used as the pigment for the silver ink.

The thickness is preferably 1 to 3 μm. If it is 1 μm or less, light reflection may be insufficient, and if it is 3 μm or more, blocking of the printed sheet is likely to occur. Problems such as deterioration may occur.

It may be printed on the entire surface of the card, or it may be partially printed according to the pattern printing layer. However, in the case of partial printing, it is necessary that the transmission density satisfies the specified value together with other printing layers such as the pattern printing layer.

<Light shielding print layer>
The light shielding print layer 52 has a function of preventing light from entering the inside of the transparent core sheet by absorbing or reflecting light incident from the outside.

As the ink that absorbs light, gray, brown, green, or the like that is close to black and not black can be used. Further, as the ink that reflects light, silver, gold, white, or the like can be used.

Both offset printing and screen printing are possible for forming the light shielding printing layer, but screen printing capable of thick printing is desirable in order to improve the light shielding property.

The thickness is preferably 1 to 3 μm. If it is 1 μm or less, the light shielding property may be insufficient, and if it is 3 μm or more, the printing sheet is likely to be blocked. Problems such as deterioration may occur.

From the viewpoint of light shielding, it is desirable to print on the entire surface of the card.

<Picture print layer>
The pattern printing layer 41 or 42 is a chromatic color pattern printing layer such as red, blue, and green, and can be used for both offset printing and screen printing.

Although various inks can be used as the ink, an organic pigment is generally used as the pigment from the viewpoint of color development.

It may be printed on the entire surface of the card, or may be partially printed.

<Transparent core sheet, transparent oversheet>
As the card base material of the present invention, a card base material in which a transparent core sheet made of one or more layers of a light-transmitting transparent base material and a light-transmitting transparent oversheet are laminated can be used.

The materials used for the transparent core sheet 10, the front transparent oversheet 21, and the back transparent oversheet 22 include vinyl chloride material, vinyl chloride-vinyl acetate copolymer material, and a copolymer of terephthalic acid and cyclohexanedimethanol and ethylene glycol. Materials, or amorphous polyester materials consisting of the above-mentioned copolymers and polymer alloys of polycarbonate and / or polyarylate, polyethylene terephthalate materials, polybutylene terephthalate materials, acrylonitrile-butadiene-styrene copolymer synthetic resin (ABS) materials, Paper materials, impregnated paper materials and the like can be used.

It is desirable that the thickness of the front transparent oversheet 21 and the back transparent oversheet 22 is 150 μm or less, respectively. If it is thicker than 150 μm, the ratio of the transparent oversheet to the side surface of the card becomes large, so that the side surface of the card may not appear sufficiently black.

<Example 1>
For the first embodiment, the black core card 1 of the present invention was produced under the following conditions.

(Creating a card)
A black printing layer 11 is formed on the transparent core sheet 10 side of the surface transparent oversheet 21 made of a transparent PET substrate having a thickness of 100 μm, and a light reflection printing layer made of white ink is formed on the outer surface side of the surface transparent oversheet 21. 31. The green pattern printing layer 41 was formed in this order to form the front oversheet laminate 100.

The black print layer 11 and the light reflection print layer 31 were printed by screen printing so as to have a thickness of 1.5 μm, respectively, and the pattern print layer 41 was printed by offset printing.

Further, a light shielding printing layer 52 made of silver ink was formed on the transparent core sheet 10 side of the back transparent oversheet 22 made of a transparent PET substrate having a thickness of 100 μm to form a back oversheet laminate 200. The light shielding printing layer 52 was formed so as to have a thickness of 1.5 μm by screen printing.

Subsequently, the front oversheet laminate 100 and the back transparent oversheet laminate 200 are laminated on both sides of a transparent core sheet 10 made of a transparent PETG substrate having a thickness of 600 μm, the card thickness is adjusted by a laminate press, and then punching is performed. It was made into a card.

(Measurement of transmission concentration)
When the transmitted density for incident light having a wavelength of 400 to 1000 nm was measured by an integrating sphere method using UV-3600 manufactured by Shimadzu Corporation, the table oversheet laminate 100 (picture printing layer 41, light reflection printing layer 31, and light reflection printing layer 31) were measured. The light transmission density of the front transparent oversheet 21 / black printing layer 11) was 2.3, and the light transmission density of the back oversheet laminate 200 (back transparent oversheet 22 / light shielding printing layer 52) was 1.1. ..

<Example 2>
For the second embodiment, the black core card 2 of the present invention was produced under the following conditions.

(Creating a card)
A black print layer 11 was formed on the transparent core sheet 10 side of the surface transparent oversheet 21 made of a transparent PET substrate having a thickness of 100 μm to form a surface overcoat laminate 100.

The black print layer was printed by screen printing so as to have a thickness of 2.0 μm.

Further, a green pattern printing layer 42 and a light reflection printing layer 32 made of white ink are formed in this order on the transparent core sheet side of the back transparent oversheet 22 made of a transparent PET substrate having a thickness of 100 μm, and the back oversheet laminate 200 is formed. And said.

The pattern printing layer 42 and the light reflection printing layer 32 were formed so as to have a thickness of 1.5 μm by screen printing.

Subsequently, the front oversheet laminate 100 and the back transparent oversheet laminate 200 are laminated on both sides of a transparent core sheet 10 made of a transparent PETG substrate having a thickness of 600 μm, the card thickness is adjusted by a laminate press, and then punching is performed. It was made into a card.

(Measurement of transmission concentration)
When the transmitted density for incident light having a wavelength of 400 to 1000 nm was measured by an integrating sphere method using UV-3600 manufactured by Shimadzu Corporation, the front oversheet laminate 100 (table transparent oversheet 21 / black printing layer 11) was measured. The light transmission density of the back oversheet laminate 200 (back transparent oversheet 22, pattern printing layer 42, light reflection printing layer 32) was 1.2.

<Example 3>
For the third embodiment, the black core card 3 of the present invention was produced under the following conditions.

(Creating a card)
A black printing layer 11 is formed on the transparent core sheet 10 side of the surface transparent oversheet 21 made of a transparent PET substrate having a thickness of 100 μm, and a light reflection printing layer made of white ink is formed on the outer surface side of the surface transparent oversheet 21. 31. The green pattern printing layer 41 was formed in this order to form the front oversheet laminate 100.

The black print layer 11 and the light reflection print layer 31 were printed by screen printing so as to have a thickness of 1.5 μm, respectively, and the pattern print layer 41 was printed by offset printing.

Further, a green pattern printing layer 42 and a light reflection printing layer 32 made of white ink are formed in this order on the transparent core sheet side of the back transparent oversheet 22 made of a transparent PET substrate having a thickness of 100 μm, and the back overcoat laminate 200 is formed. And said.

The pattern printing layer 42 and the light reflection printing layer 32 were formed so as to have a thickness of 1.5 μm by screen printing.

Subsequently, the front oversheet laminate 100 and the back transparent oversheet laminate 200 are laminated on both sides of a transparent core sheet 10 made of a transparent PETG substrate having a thickness of 600 μm, the card thickness is adjusted by a laminate press, and then punching is performed. It was made into a card.

(Measurement of transmission concentration)
When the transmitted density for incident light having a wavelength of 400 to 1000 nm was measured by an integrating sphere method using UV-3600 manufactured by Shimadzu Corporation, the table oversheet laminate 100 (picture printing layer 41, light reflection printing layer 31, and light reflection printing layer 31) were measured. The light transmission density of the front transparent oversheet 21 / black print layer 11) is 2.3, and the light transmission density of the back oversheet laminate 200 (back transparent oversheet 22 / pattern printing layer 42 / light reflection printing layer 32) is 1. It was .2.

Comparative example

<Comparative Example 1>
As a comparative example when the light-shielding property of the back oversheet laminate was lowered, a black core card was produced under the following conditions. FIG. 4 shows a schematic cross-sectional view thereof.

(Creating a card)
Similar to Example 1, a black print layer 11 is formed on the transparent core sheet 10 side of the surface transparent oversheet 21 made of a transparent PET substrate having a thickness of 100 μm, and white is formed on the outer surface side of the surface transparent oversheet 21. The light reflection printing layer 31 made of ink and the green pattern printing layer 41 were formed in this order to form a front oversheet laminate 100.

The black print layer 11 and the light reflection print layer 31 were printed by screen printing so as to have a thickness of 1.5 μm, respectively, and the pattern print layer 41 was printed by offset printing.

Further, a white printing layer 62 is formed on the transparent core sheet 10 side of the back transparent oversheet 22 made of a transparent PET substrate having a thickness of 100 μm as a substitute for the light shielding printing layer 52 in Example 1, and the back overcoat laminate 200 is formed. And said.

The white print layer 62 was formed so as to have a thickness of 1.0 μm by screen printing.

Subsequently, the front oversheet laminate 100 and the back transparent oversheet laminate 200 are laminated on both sides of a transparent core sheet 10 made of a transparent PETG substrate having a thickness of 600 μm, the card thickness is adjusted by a laminate press, and then punching is performed. It was made into a card.

(Measurement of transmission concentration)
When the transmitted density for incident light having a wavelength of 400 to 1000 nm was measured by an integrating sphere method using UV-3600 manufactured by Shimadzu Corporation, the table oversheet laminate 100 (picture printing layer 41, light reflection printing layer 31, and light reflection printing layer 31) were measured. The light transmission density of the front transparent oversheet 21 and the black print layer 11) was 2.3, and the light transmission density of the back oversheet laminate 200 (the back transparent oversheet 22 and the white print layer 62) was 0.7.

<Comparative Example 2>
As a comparative example when the light-shielding property of the back oversheet laminate was increased, a black core card was produced under the following conditions. FIG. 5 shows a schematic cross-sectional view thereof.

(Creating a card)
Similar to Example 3, a black print layer 11 is formed on the transparent core sheet 10 side of the surface transparent oversheet 21 made of a transparent PET substrate having a thickness of 100 μm, and white is formed on the outer surface side of the surface transparent oversheet 21. The light reflection printing layer 31 made of ink and the green pattern printing layer 41 were formed in this order to form a front oversheet laminate 100.

The black print layer 11 and the light reflection print layer 31 were printed by screen printing so as to have a thickness of 1.5 μm, respectively, and the pattern print layer 41 was printed by offset printing.

Further, on the transparent core sheet side of the back transparent oversheet 22 made of a transparent PET substrate having a thickness of 100 μm, a green pattern printing layer 42 and a black printing layer 12 as an alternative to the light reflection printing layer 32 in Example 3 are formed in this order. Then, the back oversheet laminated body 200 was used.

The pattern printing layer 42 and the black printing layer 12 were formed so as to have a thickness of 1.5 μm by screen printing.

Subsequently, the front oversheet laminate 100 and the back transparent oversheet laminate 200 are laminated on both sides of a transparent core sheet 10 made of a transparent PETG substrate having a thickness of 600 μm, the card thickness is adjusted by a laminate press, and then punching is performed. It was made into a card.

(Measurement of transmission concentration)
When the transmitted density for incident light having a wavelength of 400 to 1000 nm was measured by an integrating sphere method using UV-3600 manufactured by Shimadzu Corporation, the table oversheet laminate 100 (picture printing layer 41, light reflection printing layer 31, and light reflection printing layer 31) were measured. The light transmission density of the front transparent oversheet 21 / black printing layer 11) is 2.3, and the light transmission density of the back oversheet laminate 200 (back transparent oversheet 22 / pattern printing layer 42 / black printing layer 12) is 2. It was 1.

<Comparison result>
FIG. 4 shows a comparison table of the results of observing the color development state of each of the pattern print layers of Examples 1, 2 and 3 and Comparative Examples 1 and 2 and the color tone under the fluorescent lamp on the side surface of the card.

In any of Examples 1, 2 and 3 to which the present invention is applied, the color development of the pattern printing layer is good, and the color of the side surface of the card is black, indicating that the problem is solved. Has been done.

However, when the transmission density on the back surface is less than 1.0 and the light shielding property is insufficient as in Comparative Example 1, the color of the pattern printing layer is good, but the card is affected by the transmitted light. The color of the side is slightly grayish.

Further, when the transmission density on the back surface is increased by using black ink as in Comparative Example 2, the color on the side surface of the card is black because the light shielding property is sufficient, but the light from the black printing layer 12 is obtained. Due to insufficient reflection, the color development of the pattern printing layer is poor.

From the above comparison, according to the present invention, good color development of the pattern printing layer is achieved by appropriately adjusting the light transmission densities of the front cover sheet laminate and the back cover laminate while using the transparent core sheet material. It was proved that both the above and keeping the color on the side of the card black can be achieved.

1 Black core card of the first embodiment 2 Black core card of the second embodiment 3 Black core card of the third embodiment 10 Transparent core sheet 11, 12 Black printing layer 21 Front transparent oversheet 22 Back transparent oversheet 31, 32 Light reflection printing Layers 41, 42 Picture printing layer 52 Light shielding printing layer 62 White printing layer 100 Front oversheet laminate 200 Back oversheet laminate

Claims (4)

A surface oversheet laminate is provided on the surface of a transparent core sheet made of at least one transparent substrate, and the light transmission density of the surface oversheet laminate is 2.0 or more.
Further, a back oversheet laminate is provided on the back surface of the transparent core sheet, and the light transmission density of the back oversheet laminate is 1.0 or more.
The table oversheet laminate comprises at least a black print layer and a surface transparent oversheet.
The back oversheet laminate is a black core card, characterized in that it does not contain at least a black print layer and contains a back transparent oversheet. The front oversheet laminate is formed by laminating a black print layer, a front transparent oversheet, a light reflection print layer, and a pattern print layer in this order from the surface side of the transparent core sheet.
The black core card according to claim 1, wherein the back oversheet laminate is formed by laminating a light shielding print layer and a back transparent oversheet in this order from the back surface side of the transparent core sheet. .. The table oversheet laminate is formed by laminating a black print layer and a surface transparent oversheet in this order from the surface side of the transparent core sheet.
The first aspect of the present invention is characterized in that the back oversheet laminate is formed by laminating a light reflection printing layer, a pattern printing layer, and a back transparent oversheet in this order from the back surface side of the transparent core sheet. The black core card described. The table oversheet laminate is formed by laminating a black print layer, a surface transparent oversheet, a light reflection print layer, and a pattern print layer in this order from the surface side of the transparent core sheet.
The first aspect of the present invention is characterized in that the back oversheet laminate is formed by laminating a light reflection printing layer, a pattern printing layer, and a back transparent oversheet in this order from the back surface side of the transparent core sheet. The black core card described.

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